Description: Fit for 42 Tooth Crankset. Tooth plate protection cover, made by high quality plastic. High strength, not easily broken, anti-wear. Light weight, suitable for mountain bikes, road bicycles. Specification: Material: Plastic Diagonal Pitch Dimension: Approx. 14.7cm / 5.8inch Inner Diameter: Approx.15cm / 5.9inch Outer Diameter: Approx.18.5cm / 7.3inch Package Includes: 1 Piece 42 Teeth Crankset Shield